20458109

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{4099}}^1$

素因数の和:4160

約数の個数: 16

約数和(自身を含む): 25190400

約数和(自身を除く): 4732291

約数列:

[1, 7, 23, 31, 161, 217, 713, 4099, 4991, 28693, 94277, 127069, 659939, 889483, 2922587, 20458109]

約数ペア:

[(1, 20458109), (7, 2922587), (23, 889483), (31, 659939), (161, 127069), (217, 94277), (713, 28693), (4099, 4991)]